LettersCarbon tax no longer an option for Hong Kong but a necessity
Readers discuss how a carbon tax can help the city meet its climate targets, the impact of a sales tax, and China’s top-down science strategy

Countries like Singapore, Japan and Sweden offer valuable lessons. Singapore introduced a carbon tax in 2019, starting at S$5 (US$3.75) per tonne of carbon dioxide. It rose to S$25 last year, and is expected to rise to S$50-S$80 by 2030. After Japan implemented a carbon tax in 2012, the country reduced emissions by around 20 per cent between 2013 to 2022.
Sweden’s carbon tax helped reduced emissions by 26 per cent from 1990 to 2017. During the period, its economy grew by 78 per cent, according to Clean Prosperity. This proves that carbon taxes can effectively reduce emissions without harming economic growth.